News
“Crystal” oscillator comes without the crystal 10/30/2008
Silicon Laboratories is offering a new class of oscillator as a frequency reference. The all-silicon Si500 series uses neither a MEMS (microelectromechanical-system) frequency system nor a crystal, but it challenges crystal oscillators in the high-volume-frequency-reference sector. After you order the compensated-LC oscillators, you receive samples within two weeks with a minimum order of 75 un...Automotive EEPROMs use two cells per bit for ruggedness, reliability 10/2/2008
With the aim of ensuring reliable operation and long life in the demanding automotive environment, Rohm has introduced a series of EEPROMs that employ a double-cell structure. The BR25Hxx0 devices, which are SPI (serial-peripheral-interface)-bus memories, withstand the voltage surges, static discharge, heat, and vibration that they may encounter in automotive ECUs (engine-control units).Power-supervision IC measures regulator-input current, differential-output voltage 8/19/2008
Summit Microelectronics’ new SMM151 power-supervision IC allows digital control and monitoring of any voltage regulator. The device monitors input current to the target regulator so there is no added impedance to the output rail.24-bit delta-sigma ADC includes PGA 7/24/2008
The Analog Devices’ AD7190 delta-sigma converter includes the functions to make a complete precision-measurement front end.16-bit, 10M-sample/sec ADC uses SAR architecture 7/24/2008
Analog Devices’ new AD7626 ADC provides 16-bit samples at a 10-MHz rate while using 130 mW.In-Depth
MEMS-based inertial sensor is not your grandfather's gyroscope 12/1/2008
The IC Insider looks at a MEMS-based gyroscope in microscopic detail, and finds that the ingenuity in this sophisticated sensor goes far beyond the process technology used to sculpt its mechanical features.Designing very high-frequency signal generators with amplifier ICs 10/27/2008
Use high-speed op amps to make fast oscillators and pulse generators.Start with the right op amp when driving SAR ADCs 10/16/2008
Using the right operational amplifier in front of your data converter will give you good performance. Adjusting component values by production lot will give you the best performance.Silicon germanium: fast, quiet, and powerful 9/18/2008
SiGe processes can give analog-circuit designers fast, high-voltage transistors with low noise, whereas BiCMOS SiGe fits into CMOS process flows.Handcrafted analog gets automated assist 9/4/2008
EDA tools address simulation, verification, and layout for mixed-signal designs.Experts
Reducing risk by integrating configurable mixed-signal data converters 12/2/2008
An approach borrowed from the structured-ASIC world can be applied to mixed-signal data converters.Know your ceramic capacitor, part two 11/27/2008
Class II and Class III ceramic capacitor advantages, liabilities, and application considerations.Differential coupling 11/13/2008
Differential links do not need tight coupling to work effectively.Transimpedance-amplifier application: The pulse oximeter 10/30/2008
A demanding medical-electronics application, the pulse oximeter requires careful selection and implementation of a transimpedance amplifier.A new way to handle RF/PCB design 10/23/2008
EDA vendors collaborate to transfer RF circuit schematics and shapes into PCB tools and back again.DesignIdeas
